At 6ft 8in Richie was formerly with Glasgow Hawks but moved to Stirling County. He has represented Scotland at age-group level.
On Richie joining Glasgow, Sean Lineen commented: “We don’t produce many of these guys in Scotland. He needs to be in a professional environment to realise his potential. He’s a big man.
“He can be an exceptional player if he maintains his attitude. We had a fitness session yesterday and he proved that he’s got what it takes.”
Richie said: “I was in the National Academy last year and had another season to go in my contract. But I got a surprise call from Sean Lineen last Wednesday asking me if I was keen to come along and train with Glasgow fulltime.
“It’s a fantastic opportunity for me to take my game to the next level.”